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A solenoid-operated, 2-way, normally closed, piloted poppet-type, screw-in hydraulic cartridge valve, for blocking or load-holding in applications requiring low internal leakage.
When de-energized, the SV12-20 acts as a check valve, allowing flow from 1 to 2, while blocking flow from 2 to 1. When energized, the cartridge's poppet lifts to open the 2 to 1 flow path. In this mode, flow from 1 to 2 is severely restricted.
Operation of Manual Override Option: To override, push button in, twist counterclockwise 180°, and release. In this position, the valve will remain open. To return to normal operation, push button in, twist clockwise 180°, and release. Override will be detented in this position.
Continuous-duty rated coil.
Hardened seat for long life and low leakage.
Optional coil voltages and terminations.
Efficient wet-armature construction.
Cartridges are voltage interchangeable.
Unitized, molded coil design.
Manual override option.
Optional waterproof E-Coils rated up to IP69K.
Operating Pressure: 250 bar (3500 psi)
Proof Pressure: 350 bar (5075 psi)
Flow: See Performance Chart
Internal Leakage: 0.15 cc/minute (3 drops/minute) max. at 207 bar (3000 psi)
Temperature: -40 to 100 °C (-40 to 212 °F) with standard Buna seals
Coil Duty Rating: Continuous from 85% to 115% of nominal voltage
Initial Coil Current Draw at 20 °C: Standard Coil: 1.67 amps at 12 Vdc;
0.18 amps at 115 Vac (full wave rectified).
E-Coil: 1.7 amps at 12 Vdc; 0.85 amps at 24 Vdc
Minimum Pull-in Voltage: 85% of nominal at 207 bar (3000 psi)